DE102012207829B4 - Blowby flow control system for a turbocharged engine - Google Patents
Blowby flow control system for a turbocharged engine Download PDFInfo
- Publication number
- DE102012207829B4 DE102012207829B4 DE102012207829.0A DE102012207829A DE102012207829B4 DE 102012207829 B4 DE102012207829 B4 DE 102012207829B4 DE 102012207829 A DE102012207829 A DE 102012207829A DE 102012207829 B4 DE102012207829 B4 DE 102012207829B4
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- Prior art keywords
- air
- turbocharger
- control system
- oil separator
- flow control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/028—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of positive pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/02—Crankcase ventilating or breathing by means of additional source of positive or negative pressure
- F01M13/021—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
- F01M2013/027—Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure with a turbo charger or compressor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
Strömungssteuersystem (10) umfassend:einen Motor (20), der einen Luft-Öl-Separator (56) und einen Ansaugkrümmer (40) aufweist, wobei der Luft-Öl-Separator (56) Öltröpfchen und Ölnebel von einem Blowby-Gas (52) trennt;einen Turbolader (22), der einen Lufteinlass (76) und einen Luftauslass (78) aufweist, wobei der Luftauslass (78) fluidmäßig mit dem Ansaugkrümmer (40) des Motors (20) verbunden ist;eine positive Kurbelwellengehäuse-Belüftungs-(PCV-)Belüftungsleitung (68), die ein erstes, fluidmäßig mit dem Luft-Öl-Separator (56) verbundenes Ende und ein zweites, fluidmäßig mit dem Lufteinlass (76) des Turboladers (22) verbundenes Ende aufweist, wobei die PCV-Belüftungsleitung (68) das Blowby-Gas (52) von dem Luft-Öl-Separator (56) zu dem Lufteinlass (76) des Turboladers (22) liefert; undeine Strömungsregulierungsvorrichtung (92); dadurch gekennzeichnet, dassdie Strömungsregulierungsvorrichtung (92) in der PCV-Belüftungsleitung (68) angeordnet und eingerichtet ist, um selektiv die Strömung von Blowby-Gas (52) von dem Luft-Öl-Separator (56) zu dem Lufteinlass (76) des Turboladers (22) derart zu begrenzen, dass eine negative Druckgrenze in dem Kurbelwellengehäuse (50) unter hoher Motorlast nicht in Richtung erhöhten Vakuums überschritten wird.A flow control system (10) comprising: an engine (20) having an air-oil separator (56) and an intake manifold (40), the air-oil separator (56) having oil droplets and oil mist from a blowby gas (52 ); a turbocharger (22) having an air inlet (76) and an air outlet (78), the air outlet (78) being fluidly connected to the intake manifold (40) of the engine (20); a positive crankcase ventilation (PCV) ventilation line (68) which has a first end that is fluidly connected to the air-oil separator (56) and a second end that is fluidly connected to the air inlet (76) of the turbocharger (22), the PCV- Vent line (68) supplies the blowby gas (52) from the air-oil separator (56) to the air inlet (76) of the turbocharger (22); and a flow regulator (92); characterized in that the flow regulating device (92) is disposed in the PCV vent line (68) and is arranged to selectively restrict the flow of blowby gas (52) from the air-oil separator (56) to the air inlet (76) of the turbocharger (22) in such a way that a negative pressure limit in the crankshaft housing (50) is not exceeded in the direction of increased vacuum under high engine load.
Description
GEBIET DER ERFINDUNGFIELD OF THE INVENTION
Die vorliegende Erfindung bezieht sich auf Strömungssteuersysteme und insbesondere auf ein Strömungssteuersystem gemäß dem Oberbegriff des Anspruchs 1 für einen turbogeladenen Motor, der eine in einer PCV-Belüftungsleitung angeordnete Strömungsregulierungsvorrichtung aufweist, die an den Turbolader angebunden ist. Ein gattungsgemäßes Strömungssteuersystem geht der Art nach im Wesentlichen aus der WO 2009 / 084 144 A1 hervor.
Bezüglich des weitergehenden Standes der Technik sei an dieser Stelle auf die Druckschriften
Regarding the further state of the art, please refer to the publications at this
HINTERGRUNDBACKGROUND
Während des Motorbetriebs kann Verbrennungsgas zwischen dem Zylinder und den entsprechenden Kolbenringen und in das Kurbelwellengehäuse des Motors ausströmen. Das ausgeströmte Verbrennungsgas wird als Blowby-Gas bezeichnet und umfasst typischerweise unverbrannte Ansaugluft, Treibstoff, Abgas, Ölnebel und Wasserdampf. In dem Bestreben, das Kurbelwellengehäuse zu belüften und das Blowby-Gas zu der Ansaugseite des Motors zurückzuführen, ist ein positives Kurbelwellengehäuse-Belüftungssystem (PCV-System von positive crankcase ventilation) vorgesehen.Combustion gas can escape between the cylinder and the corresponding piston rings and into the crankcase of the engine during engine operation. The exhausted combustion gas is referred to as blowby gas and typically includes unburned intake air, fuel, exhaust gas, oil mist, and water vapor. In an effort to ventilate the crankcase and return the blowby gas to the intake side of the engine, a positive crankcase ventilation system (PCV system) is provided.
Ein Luft-Öl-Separator ist zum Trennen der Blowby-Gase von Öl und Nebel vorgesehen. Bei einem turbogeladenen Motor durchläuft ein Teil des Blowby-Gases den Luft-Öl-Separator wird dann durch eine PCV-Leitung zu dem Einlass des Turboladers geleitet. Der Turbolader ist mit einem Ansaugkrümmer des Motors verbunden. Unter Bedingungen hoher Last (High-Boost-Bedingungen) kann am Turboladereinlass und innerhalb des Kurbelwellengehäuses des Motors ein partielles Vakuum erzeugt werden. Das partielle Vakuum wird erzeugt, wenn unter Bedingungen hoher Last die Luftströmung in den Turbolader hinein zunimmt. Dies wiederum kann dazu führen, dass die negative Druckgrenze des Kurbelwellengehäuses überschritten wird. Das Kurbelwellengehäuse umfasst Lippendichtungen, die typischerweise zwischen dem Motorblock und der Kurbelwelle montiert sind und zum Dichten sowie dafür verwendet werden, das Eindringen von Verunreinigungen und Ölleckage zu verhindern. Jedoch kann ein Überschreiten der negativen Druckgrenze des Kurbelwellengehäuses dazu führen, dass die Lippendichtungen aus ihrer eingesetzten Position herausgezogen werden.An air-oil separator is provided to separate the blowby gases from oil and mist. In the case of a turbocharged engine, some of the blowby gas passes through the air-oil separator and is then passed through a PCV line to the inlet of the turbocharger. The turbocharger is connected to an intake manifold of the engine. Under high load conditions (high boost conditions), a partial vacuum can be generated at the turbocharger inlet and within the crankshaft housing of the engine. The partial vacuum is created when the air flow into the turbocharger increases under high load conditions. This in turn can lead to the negative pressure limit of the crankshaft housing being exceeded. The crankcase includes lip seals that are typically mounted between the engine block and the crankshaft and are used for sealing as well as preventing contaminants from entering and oil leakage. However, exceeding the negative pressure limit of the crankshaft housing can result in the lip seals being pulled out of their inserted position.
Bei einem Ansatz wird der Level des Kurbelwellengehäuse-Vakuums durch Reduzieren eines Teils des PCV-Belüftungsleitungsdurchmessers begrenzt. Bei einem alternativen Ansatz ist in der PCV-Belüftungsleitung ein Durchlass mit einer bestimmten Größe vorgesehen. Jedoch kann das Auswählen eines geeigneten PCV-Leitungsdurchmessers oder Durchlasses oft eine signifikante Menge an Zeit, Testen und Entwicklung erfordern, um die erwünschten Kurbelwellengehäuse-Drücke unter Bedingungen hoher Last zu erhalten. Darüber hinaus kann es sein, dass, selbst wenn der geeignete PCV-Leitungsdurchmesser oder Durchlass ausgewählt ist, PCV-Vereisungs- oder Kurbelwellengehäuse-NOx-Anforderungen nicht erfüllt werden. Speziell in kalten Klimazonen kann sich kondensiertes Wasser in dem PCV-System ansammeln und gefrieren, vor allem in Bereichen, in denen der PCV-Leitungsdurchmesser reduziert worden ist. Gefrorenes Wasser in der PCV-Leitung kann zu einer versperrten Gasströmung oder zu Vereisung der Belüftungssystemkomponenten führen. NOx-Anforderungen werden ungünstig beeinflusst, weil eine eingeschränkte Gasströmung in der PCV-Leitung wiederum dazu führt, dass weniger frische Luft zu dem Motorkurbelwellengehäuse zugeführt wird.In one approach, the level of the crankcase vacuum is limited by reducing some of the PCV vent line diameter. In an alternative approach, a passage of a certain size is provided in the PCV ventilation line. However, selecting an appropriate PCV line diameter or passage can often require a significant amount of time, testing, and development to obtain the desired crankcase pressures under high load conditions. Additionally, even if the appropriate PCV conduit diameter or passage is selected, PCV icing or crankcase NO x requirements may not be met. Especially in cold climates, condensed water can collect and freeze in the PCV system, especially in areas where the PCV line diameter has been reduced. Frozen water in the PCV line can block the gas flow or cause the ventilation system components to freeze. NO x requirements are adversely affected because a restricted gas flow in the PCV line in turn means that less fresh air is supplied to the engine crankshaft housing.
Bei noch einem anderen Ansatz, den Level des Kurbelwellengehäuse-Vakuums zu begrenzen, wird die PCV-Leitungslänge signifikant verlängert. Jedoch hat auch dieser Ansatz die Tendenz, kondensiertes Wasser in der PCV-Leitung anzusammeln und zu gefrieren.In yet another approach to limit the level of the crankcase vacuum, the PCV line length is significantly increased. However, even this approach has a tendency to accumulate condensed water in the PCV line and freeze it.
Dementsprechend liegt der Erfindung die Aufgabe zu Grunde, ein PCV-System anzugeben, das unter Bedingungen hoher Last ein bestimmtes Kurbelwellengehäuse-Vakuum nicht überschreitet, während nach wie vor PCV-Vereisungs- und Kurbelwellengehäuse-NOx-Anforderungen erfüllt werden.Accordingly, the invention is based on the object of specifying a PCV system which, under high load conditions, does not exceed a certain crankshaft housing vacuum, while PCV icing and crankshaft housing NO x requirements are still met.
ZUSAMMENFASSUNG DER ERFINDUNGSUMMARY OF THE INVENTION
Diese Aufgabe wird mit einem Strömungssteuersystem mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved with a flow control system having the features of claim 1.
Die obigen Merkmale und Vorteile und andere Merkmale und Vorteile der Erfindung sind ohne weiteres offensichtlich aus der folgenden detaillierten Beschreibung der Erfindung, wenn sie in Verbindung mit den begleitenden Zeichnungen herangezogen wird.The above features and advantages and other features and advantages of the invention are readily apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
KURZBESCHREIBUNG DER ZEICHNUNGENBRIEF DESCRIPTION OF THE DRAWINGS
Andere Merkmale, Vorteile und Details erscheinen lediglich beispielhalber in der folgenden detaillierten Beschreibung von Ausführungsformen, wobei sich die detaillierte Beschreibung auf die Zeichnung bezieht, in der ein beispielhaftes schematisches Schaubild eines Strömungssteuersystems für einen turbogeladenen Motor veranschaulicht ist.Other features, advantages and details appear by way of example only in the following detailed description of embodiments, wherein the detailed description refers to the drawing, in which an exemplary schematic A diagram of a flow control system for a turbocharged engine is illustrated.
BESCHREIBUNG DER AUSFÜHRUNGSFORMENDESCRIPTION OF THE EMBODIMENTS
In Übereinstimmung mit einer beispielhaften Ausführungsform der Erfindung ist die Zeichnung ein schematisches Schaubild eines Strömungssteuersystems, das durch das Bezugszeichen
Das PCV-System
Bei der gezeigten beispielhaften Ausführungsform, ist die Düse
Der Turbolader
Die PCV-Belüftungsleitung
Eine Strömungsregulierungsvorrichtung
Wenn eine große Menge an Luftströmung in den Umgebungslufteinlass
Mehrere andere Ansätze sind derzeit verfügbar, um die Menge an Luftströmung in den Luftansaugkanal
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/107,335 | 2011-05-13 | ||
US13/107,335 US8695339B2 (en) | 2011-05-13 | 2011-05-13 | Blowby flow control system for a turbocharged engine |
Publications (2)
Publication Number | Publication Date |
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DE102012207829A1 DE102012207829A1 (en) | 2012-11-15 |
DE102012207829B4 true DE102012207829B4 (en) | 2021-12-09 |
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Application Number | Title | Priority Date | Filing Date |
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DE102012207829.0A Active DE102012207829B4 (en) | 2011-05-13 | 2012-05-10 | Blowby flow control system for a turbocharged engine |
Country Status (3)
Country | Link |
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US (1) | US8695339B2 (en) |
CN (1) | CN102777232B (en) |
DE (1) | DE102012207829B4 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9347368B2 (en) * | 2012-10-25 | 2016-05-24 | Ford Global Technologies, Llc | Method and system for fuel vapor management |
US9359923B2 (en) * | 2012-10-25 | 2016-06-07 | Ford Global Technologies, Llc | Method and system for fuel vapor management |
KR101484209B1 (en) * | 2013-03-27 | 2015-01-21 | 현대자동차 주식회사 | Blow-by gas recirculating system for internal combustion engine |
CN103397926A (en) * | 2013-08-15 | 2013-11-20 | 安徽江淮汽车股份有限公司 | Respiratory system of pressurization gasoline engine |
JP5971232B2 (en) * | 2013-12-24 | 2016-08-17 | トヨタ自動車株式会社 | Engine system control device |
JP5949810B2 (en) * | 2014-02-28 | 2016-07-13 | トヨタ自動車株式会社 | Blow-by gas processing device for internal combustion engine |
DE202014003301U1 (en) * | 2014-04-17 | 2015-05-06 | Reinz-Dichtungs-Gmbh | ventilation system |
US9771841B2 (en) * | 2014-10-28 | 2017-09-26 | Ford Global Technologies, Llc | Crankcase ventilation for turbocharged engine |
US10174650B2 (en) * | 2014-11-21 | 2019-01-08 | Ford Global Technologies, Llc | Vehicle with integrated turbocharger oil control restriction |
US9909470B2 (en) | 2015-04-23 | 2018-03-06 | Ford Global Technologies, Llc | Crankcase ventilation pressure management for turbocharged engine |
CN105065086B (en) * | 2015-07-27 | 2017-05-31 | 苏州麦田工业设备有限公司 | Double separation oil and gas separators |
BR112018004023B1 (en) | 2015-08-28 | 2022-09-20 | Dayco Ip Holdings, Llc | CONSTRAINTS USING THE VENTURI EFFECT |
US10113455B2 (en) | 2016-12-07 | 2018-10-30 | Caterpillar Inc. | Regulator assembly |
CN109139419A (en) * | 2017-06-28 | 2019-01-04 | 郑州宇通客车股份有限公司 | A kind of vehicle and its air compressor crankcase exhaust gas treatment method, system |
FR3069277A1 (en) * | 2017-07-19 | 2019-01-25 | Psa Automobiles Sa | THERMAL MOTOR COMPRISING AN INTERNAL CIRCUIT FOR LIMITING THE PRESSURE OF CARTER GAS |
US10662836B2 (en) | 2017-09-20 | 2020-05-26 | Fca Us Llc | Integrated heater and pressure sensor for PCV system |
EP3489476A1 (en) | 2017-11-23 | 2019-05-29 | GE Jenbacher GmbH & Co. OG | Internal combustion engine with a turbo charger unit |
US11097285B2 (en) | 2018-01-11 | 2021-08-24 | Kuhn Performance Technologies, Llc | Crankcase ventilation management devices, systems, and methods |
JP6950587B2 (en) * | 2018-03-07 | 2021-10-13 | マツダ株式会社 | Engine supercharger |
CN113272530B (en) * | 2019-01-11 | 2023-05-23 | 戴科知识产权控股有限责任公司 | Crankcase ventilation system that is continuously limited in flow direction and free to flow in opposite direction |
CN112282891B (en) * | 2019-07-25 | 2022-02-22 | 长城汽车股份有限公司 | Crankcase ventilation control method and crankcase ventilation system |
CN111022151A (en) * | 2020-01-07 | 2020-04-17 | 中国重汽集团济南动力有限公司 | Crankcase ventilation system of heavy natural gas engine |
CN114233469B (en) * | 2021-12-09 | 2023-03-28 | 湖南道依茨动力有限公司 | Method and device for preventing engine oil leakage of turbocharger, engine and engineering vehicle |
WO2023137587A1 (en) * | 2022-01-18 | 2023-07-27 | Cummins Inc. | Engine system and crankcase ventilation systems |
US11951435B1 (en) | 2022-10-18 | 2024-04-09 | Ge Infrastructure Technology Llc | Vapor separation systems and methods |
US11988119B1 (en) | 2023-05-22 | 2024-05-21 | Caterpillar Inc. | Internal combustion engine with ventilation system for crankcase dilution |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10026492A1 (en) | 2000-05-27 | 2001-11-29 | Bosch Gmbh Robert | Method for the functional diagnosis of a ventilation system of a crankcase of an internal combustion engine |
DE102006019636A1 (en) | 2006-04-25 | 2007-10-31 | Mahle International Gmbh | Ent- and ventilation device for a supercharged internal combustion engine |
DE102008004826A1 (en) | 2007-01-23 | 2008-08-14 | GM Global Technology Operations, Inc., Detroit | Closed engine crankcase ventilation system with venturi for flow control |
WO2009084144A1 (en) | 2007-12-27 | 2009-07-09 | Toyota Jidosha Kabushiki Kaisha | Intake pipe structure of internal combustion engine |
EP2089614B1 (en) | 2006-10-06 | 2010-09-01 | Toyota Jidosha Kabushiki Kaisha | Blow-by gas processing apparatus |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5140968A (en) * | 1992-02-14 | 1992-08-25 | Navistar International Transportation Corp. | Closed loop breather system for engine crankcase |
JP2004137921A (en) * | 2002-10-16 | 2004-05-13 | Mitsubishi Motors Corp | Blow-by gas recirculation device for internal combustion engine |
JP4383983B2 (en) * | 2004-08-06 | 2009-12-16 | 株式会社日本自動車部品総合研究所 | Blowby gas recirculation system |
DE102006019634B4 (en) | 2006-04-25 | 2019-04-25 | Mahle International Gmbh | Venting device for a supercharged internal combustion engine |
FR2904374B1 (en) * | 2006-07-25 | 2012-10-26 | Valeo Sys Controle Moteur Sas | VALVE WITH DERIVED CHANNEL INCORPORATING A HEATING MEMBER AND INTAKE CIRCUIT WITH AIR PREHEATING FOR THERMAL ENGINE |
JP2008106637A (en) * | 2006-10-24 | 2008-05-08 | Aisan Ind Co Ltd | Blowby gas passage structure |
CN101235738B (en) * | 2007-02-02 | 2011-07-06 | 陈葆徕 | Engine air admittance regulation system |
-
2011
- 2011-05-13 US US13/107,335 patent/US8695339B2/en active Active
-
2012
- 2012-05-10 DE DE102012207829.0A patent/DE102012207829B4/en active Active
- 2012-05-11 CN CN201210202384.6A patent/CN102777232B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10026492A1 (en) | 2000-05-27 | 2001-11-29 | Bosch Gmbh Robert | Method for the functional diagnosis of a ventilation system of a crankcase of an internal combustion engine |
DE102006019636A1 (en) | 2006-04-25 | 2007-10-31 | Mahle International Gmbh | Ent- and ventilation device for a supercharged internal combustion engine |
EP2089614B1 (en) | 2006-10-06 | 2010-09-01 | Toyota Jidosha Kabushiki Kaisha | Blow-by gas processing apparatus |
DE102008004826A1 (en) | 2007-01-23 | 2008-08-14 | GM Global Technology Operations, Inc., Detroit | Closed engine crankcase ventilation system with venturi for flow control |
US7431023B2 (en) | 2007-01-23 | 2008-10-07 | Gm Global Technology Operations, Inc. | Engine PCV system with venturi nozzle for flow regulation |
WO2009084144A1 (en) | 2007-12-27 | 2009-07-09 | Toyota Jidosha Kabushiki Kaisha | Intake pipe structure of internal combustion engine |
Also Published As
Publication number | Publication date |
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DE102012207829A1 (en) | 2012-11-15 |
US20120285425A1 (en) | 2012-11-15 |
CN102777232B (en) | 2016-03-16 |
US8695339B2 (en) | 2014-04-15 |
CN102777232A (en) | 2012-11-14 |
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